/*
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 * and open the template in the editor.
 */
package servlet;

import entity.ProfessoreOld;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.*;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.annotation.Resource;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.sql.DataSource;

/**
 *
 * @author sflesca
 */
public class ListaProfGestita extends HttpServlet {

    @Resource(name = "esempioDB2015DS")
    private DataSource esempioDB2015DS;

    /**
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code>
     * methods.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        Connection con = null;
        List professori = new LinkedList();
        request.setAttribute("professori", professori);
        try {
            con = esempioDB2015DS.getConnection();
            Statement st = con.createStatement();
            ResultSet rs = st.executeQuery("select * from Professore");
            while (rs.next()) {
                professori.add(new ProfessoreOld(rs.getInt(1), rs.getString(2), rs.getString(3)));
            }
        } catch (SQLException ex) {
            Logger.getLogger(ListaProfessori.class.getName()).log(Level.SEVERE, null, ex);
        } finally {
            if (con != null) {
                try {
                    con.close();
                } catch (SQLException ex) {
                    Logger.getLogger(ListaProfessori.class.getName()).log(Level.SEVERE, null, ex);
                }
            }
            gotoPage("/jsp/prova.jsp", request, response);
        }
    }

    private void gotoPage(String address,HttpServletRequest request,
            HttpServletResponse response) throws ServletException,IOException{
	RequestDispatcher dispatcher
                = getServletContext().getRequestDispatcher(address);
        dispatcher.forward(request, response);
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
